The word **喊叫** is formed through a common Chinese morphological process known as **synonymous compounding**, where two characters with similar meanings are combined to create a single, more emphatic or comprehensive term. The character **喊 (hǎn)** primarily means "to shout" or "to yell," often with a focus on projecting one's voice loudly to get attention. The character **叫 (jiào)** means "to call out" or "to cry out," frequently implying making a vocal sound. When paired, they reinforce each other's semantic field, resulting in a word that broadly and intensively means "to shout and cry out" or simply "to scream." This structure strengthens the overall meaning and is a typical method for forming disyllabic verbs in modern Chinese.